Antonyms of adj disadvantageous

1 sense of disadvantageous

Sense 1
disadvantageous (vs. advantageous) -- (constituting a disadvantage)

advantageous (vs. disadvantageous) -- (giving an advantage; "a contract advantageous to our country"; "socially advantageous to entertain often")
        => beneficial, good -- (promoting or enhancing well-being; "an arms limitation agreement beneficial to all countries"; "the beneficial effects of a temperate climate"; "the experience was good for her")
        => plus, positive -- (involving advantage or good; "a plus (or positive) factor")
        => discriminatory, preferential -- (manifesting partiality; "a discriminatory tax"; "preferential tariff rates"; "preferential treatment"; "a preferential shop gives priority or advantage to union members in hiring or promoting")

Similarity of adj disadvantageous

1 sense of disadvantageous

Sense 1
disadvantageous (vs. advantageous) -- (constituting a disadvantage)
       => minus, negative -- (involving disadvantage or harm; "minus (or negative) factors")
          Also See-> inexpedient#1; harmful#1; inopportune#1